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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 5,500 book chapters authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
Filter Total Items: 6158
Using regional-scale pre- and post Hurricane Katrina lidar for monitoring and modeling: Chapter 30 Using regional-scale pre- and post Hurricane Katrina lidar for monitoring and modeling: Chapter 30
Hurricane Katrina was one of the largest natural disasters in U.S. history. Due to the sheer size of the affected areas, an unprecedented regional analysis at very high resolution and accuracy was needed to properly quantify and understand the effects of the hurricane and the storm tide. Many disparate sources of lidar data were acquired and processed for varying environmental reasons by...
Authors
Jason M. Stoker, D. Phil Turnipseed, Kenneth V. Wilson
Walleye and sauger life history: Chapter 7 Walleye and sauger life history: Chapter 7
No abstract available.
Authors
Michael A. Bozek, Dominic A. Baccante, Nigel P. Lester
The Hydrogeology of the San Juan Mountains Chapter 5 The Hydrogeology of the San Juan Mountains Chapter 5
Knowledge of the occurrence, storage, and flow of groundwater in mountainous regions is limited by the lack of integrated data from wells, streams, springs, and climate. In his comprehensive treatment of the hydrogeology of the San Luis Valley, Huntley (1979) hypothesized that the underlying, fractured volcanic bedrock of the San Juan Mountains has relatively high bulk permeability and a...
Authors
Jonathan S. Caine, Anna B. Wilson
Estimating nonharvested crop residue cover dynamics using remote sensing Estimating nonharvested crop residue cover dynamics using remote sensing
No abstract available.
Authors
David Clay, V.P. Obade, C. Carlson, K. Dalsted, Bruce K. Wylie, C. Ren, S.A. Clay
Utah's geologic and geomorphic analogs to Mars—An overview for planetary exploration Utah's geologic and geomorphic analogs to Mars—An overview for planetary exploration
Utah offers spectacular geologic features and valuable analog environments and processes for Mars studies. Horizontal strata of the Colorado Plateau are analogous to Mars because the overprint of plate tectonics is minimal, yet the effects of strong ground motion from earthquakes or impacts are preserved in the sedimentary record. The close proximity of analog environments and lack of...
Authors
Marjorie A. Chan, Kathleen Nicoll, Jens Ormö, Chris Okubo, Goro Komatsu
An ecosystem level approach for developing an environmental monitoring program for the US/Mexico Border Region An ecosystem level approach for developing an environmental monitoring program for the US/Mexico Border Region
No abstract available.
Authors
Pamela L. Nagler, W. Lackner, M. Sturm, R. Castillo-Gamez, G. Ceballos
Measurement and modeling of unsaturated hydraulic conductivity Measurement and modeling of unsaturated hydraulic conductivity
The unsaturated zone plays an extremely important hydrologic role that influences water quality and quantity, ecosystem function and health, the connection between atmospheric and terrestrial processes, nutrient cycling, soil development, and natural hazards such as flooding and landslides. Unsaturated hydraulic conductivity is one of the main properties considered to govern flow...
Authors
Kim S. Perkins
Carbofuran: Toxicity, diagnosing poisoning and rehabilitation of poisoned birds Carbofuran: Toxicity, diagnosing poisoning and rehabilitation of poisoned birds
No abstract available.
Authors
Pierre Mineau, Stuart Porter, Carol Uphoff Meteyer
The skin: The many functions of fish integument The skin: The many functions of fish integument
The integument or skin is the envelope that not only separates and protects a fish from its environment, but also provides the means through which most contacts with the outer world are made. It is a large organ and is continuous with the linings of all body openings, and also covers the fins. Fish integument is a multifunctional organ, and its components may serve important roles in...
Authors
Diane G. Elliott
Analysis of the effects of heavy metals on vegetation hyperspectral reflectance properties Analysis of the effects of heavy metals on vegetation hyperspectral reflectance properties
No abstract available.
Authors
Terrence Slonecker